US3793950A - Combination new master supply and used master receiving assembly - Google Patents

Combination new master supply and used master receiving assembly Download PDF

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Publication number
US3793950A
US3793950A US00299090A US3793950DA US3793950A US 3793950 A US3793950 A US 3793950A US 00299090 A US00299090 A US 00299090A US 3793950D A US3793950D A US 3793950DA US 3793950 A US3793950 A US 3793950A
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United States
Prior art keywords
master
plates
machine
new
tray
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Expired - Lifetime
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US00299090A
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English (en)
Inventor
T Kaneko
K Mizuno
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Ricoh Co Ltd
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Ricoh Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41L—APPARATUS OR DEVICES FOR MANIFOLDING, DUPLICATING OR PRINTING FOR OFFICE OR OTHER COMMERCIAL PURPOSES; ADDRESSING MACHINES OR LIKE SERIES-PRINTING MACHINES
    • B41L39/00—Indicating, counting, warning, control, or safety devices

Definitions

  • a used master plate receiving tray device for rotary offset printing machines comprising a receiving tray which is disposed below and formed integrally with a master plate supply tray on which a plurality of master plates to be automatically supplied to the master cylinder of the machine are piled in a stack. A used master plate is automatically removed from the master cylinder and slipped into the receiving tray.
  • a master plate is mounted on the master cylinder of the machine and is inked, after being etched, for performing a printing operation.
  • the used master plate is removed from the master cylinder and another master plate is mounted on the vacated master cylinder, so that the aforementioned process may be repeated.
  • a master plate is manually mounted on the master cylinder and removed therefrom.
  • Another type of rotary offset printing machine is provided with an automatic master plate supply device which operates such that one master plate after another is automatically supplied to the master cylinder.
  • a predetermined number of master plates are piled in a stack on the master plate supply tray beforehand and each of the master plates is automatically supplied to the master cylinder.
  • the used master plate is automatically expelled from the master cylinder so that the used master plates are piled on the used master plate receiving tray.
  • the master plate supply tray is positioned posterior to the master cylinder and the used master plate receiving tray is disposed anterior to the master cylinder.
  • the master plate supply tray and receiving tray are oppositely located with respect to the master cylinder.
  • This arrangement has a disadvantage in that the machine as a whole has an increased overall size because the master plate supply tray and the used master plate receiving tray stick out from the machine on the front and rear sides thereof.
  • Another disadvantage lies in the fact that since the used master plate receiving tray is not disposed posterior to the master plate, or on the side of the machine near to the operator, the operator is faced with difficulties in immediately checking on whether the used master plate expelling action has been performed satisfactorily.
  • This invention relates to used master plate receiving tray devices for rotary offset printing machines. More particularly, the invention is concerned with a tray device for receiving used master plates adapted for use with rotary offset printing machines of the type which are provided with an automatic master plate supply device capable of automatically supplying one master plate after another to the master cylinder of the machine and a master plate discharging device capable of automatically removing each used master plate from the master cylinder.
  • An object of the invention is to provide a used master plate receiving tray device for rotary offset printing machines which is easy to handle and which enables obtaining a compact overall size in a rotary offset printing machine; moreover, the unique tray device facilitates ready checking as to whether or not the used plate. releasing operation has been performed satisfactorily.
  • Another object of the invention is to provide a used master plate receiving tray device for rotary offset printing machines which permits a used master plate to readily and smoothly slip into the tray after being auto matically removed from the master cylinder.
  • FIG. I is a fragmentary side view of a rotary offset printing machine provided with the used master plate receiving tray device according to this invention showing the master plate supply device and the used master plate discharging device;
  • FIG. 2 is a sectional view taken along the line lI-II of FIG. 1;
  • FIG. 3 is a perspective view of the used master plate receiving tray device comprising another embodiment of the invention.
  • a rotary offset printing machine which comprises a master cylinder 2, a blanket cylinder 3 and an impression cylinder 4, rotatably mounted on side plates 1 of the machine frame and operatively connected with one another for rotation in a predetermined direction, as well as an automatic master plate supply device having clamp means 5 cooperating with a flat edge of a recess 2a in the master cylinder 2 for gripping the leading edge of a master plate.
  • Two solid rods 6 and 7 spaced apart vertically and disposed parallel to each other are firmly connected to the side plates 1 in positions posterior to the master cylinder 2 (or on the right side thereof in FIG. 1).
  • a used master plate receiving tray device 8 comprises as its principal components a master plate supply tray 9 for receiving thereon a plurality of master plates 0, and a casing 10 formed below the master plate supply tray 9, such casing 10 including a bottom plate which serves as a tray 10a for receiving thereon used master plates removed from the master cylinder. 7
  • the master plate supply tray 9 includes side plates 9a and 9b which are conveniently mounted on the supply tray 9 and capable of movement across the width of the tray for contacting the master plates 0 on opposite side edges and holding them therebetween. This arrangement aids in aligning the master plates 0 and holding them in place on the tray.
  • the casing 10 includes two side plates which are formed on the front end edges thereof with cutouts having engaging portions 10b, 10b which are adapted to engage the rod 6.
  • the cutouts also have edges 10c, which abut against the rod 7 when the used master plate receiving tray device 8 is mounted on the side plates 1 of the machine frame in such a manner that the device is tilted with its forward end being disposed slightly below its rear end.
  • the used master plate receiving tray device 8 may be disposed such that the master plate supply tray 9 is disposed in a horizontal plane.
  • upper and lower guide plates 11 and 12 which define a supply path.
  • a pair of master plate delivery rollers 13, 13 are mounted in one portion of the supply path for rotation while pressing against each other.
  • a master platesupply roller 14 is brought into contact with the forward end portion of the master plates disposed on the master plate supply tray 9 for pressing against the same with a suitable force.
  • the master plate supply roller 14 is adapted to rotate in the direction of the arrow b when the master plate is to be fed for delivering the uppermost master plate of the stack of master plates 0 to the master cylinder 2.
  • a given master plate moves between the guide plates 11 and 12 in the direction of the arrow c to be gripped by the pair of delivery rollers 13 and moved in the direction of the arrow d.
  • the clamp means provided in the master cylinder 1 is adapted to be disposed in the position shown in FIG.
  • Support means 16 pivotally supported by a shaft 15 connected to the side plates 1 of the machine frame is disposed below the supply path.
  • the support means 16 includes a number of peeling pawls (only one is visible) 17 disposed in side by side relation on the upper side of the support means and facing the peripheral surface of the master cylinder 2.
  • the support means 16 also includes a roller 18 disposed below the peeling pawls 17, a roller 19 mounted on the shaft 15, and an endless belt 20 mounted on the two rollers 18 and 19.
  • the support means 16 is formed, in the upper portions of the opposite ends of the roller 19, with cutouts (only one is visible) 16a which receive therein opposite ends of a roller 21 which bears against an elevated portion 19a of the roller 19 by its own weight.
  • the support means 16 is formed at its lower edge with a bent portion 16b which is disposed against the upper end of a headed screw 34 mounted on the forward bent portion of a lever 22.
  • the lever 22 is adapted to move in pivotal motion in the direction of the arrow e about a shaft 22a to move the support means 16 toward the master cylinder 2 when the master plate mounted on the master cylinder is removed and expelled therefrom.
  • the support means 16 moves in pivotal motion about the shaft 15 in a clockwise direction in FIG. 1, so that the leading edges of the peeling pawls 17 and the belt 20 are brought into pressing engagement with the peripheral surface of the master cylinder 2.
  • the master cylinder 2 is disposed such that the clamp means 5 opens in the position of the peeling pawls 17.
  • the master plate mounted on the master cylinder 2 is removed therefrom by the peeling pawls 17, 17 and moved in the direction of the arrow f by the belt 20 to be gripped between the elevated portion 19a of the roller 19 and the roller 21.
  • the used master plate gripped between the rollers 19 and 21 and expelled in the direction of the arrow 3 is introduced into the casing 10.
  • the casing 10 defines therein a receiving tray 10a which includes a relatively low wall l0al formed in the lower edge of a front opening of the casing 10 by upwardly bending the lower edge for preventing the used master plate disposed on the receiving tray 10a from slipping off the tray.
  • the height of the wall 10al is selected such that the wall 10111 does not interfere with the movement of the used master plate introduced into the receiving tray through the front opening of the casing.
  • the receiving tray 10a is formed, in the central portion of the tray as seen in FIG. 2, with a guide protuberance 10a2 which extends longitudinally of the tray and has a ridge which becomes increasingly higher in going from the entrance or opening of the casing 10 (on the left as seen in FIG. 1) toward the rear end of the casing.
  • the provision of the guide protuberance shaped as aforementioned facilitates the receiving of the master plate which is relatively firm.
  • a backing plate 23 is provided on the underside of the casing 10 so that the plate 23 and the bottom plate of the casing define therebetween a space in which a sliding plate 24 is received for sliding motion back and forth.
  • the sliding plate 24 includes a rear end which is bent upwardly to form a stopper 10a3 serving as the rear wall of the casing 10. By moving the sliding plate 24 back and forth, the stopper l0a3 can be disposed in an optimum position for the particular master plates being received in the used master plate receiving tray 10a.
  • FIG. 3 shows another embodiment of the used master plate receiving tray device according to this invention.
  • a receiving tray 10a comprises side walls 31, and a bottom plate 31a which is cutout in the center.
  • the tray 10 also comprises a backing plate 32 which is provided on the underside of the bottom plate 31a to define therebetween a space in which a sliding plate 33 is slidably fitted.
  • the sliding plate 33 is formed in the central portion of its surface with a guide protuberance 10a2 of the same configuration as the guide protuberance described with reference to FIG. 2.
  • the sliding plate 33 is also formed with a stopper 10a3 at its rear end.
  • the wall 10a1 for preventing the master plate from slipping off the tray is provided by bending upwardly, a forward end portion of the backing plate 32.
  • a rotary offset printing machine comprising: a rotary master cylinder having means for releasably holding master plates mounted thereon, means for storing a stack of new master plates to be mounted on the master cylinder for printing therewith and a stack of used master plates removed from the master cylinder after printing therewith, and means for selectively and successively taking master plates from the stack of new master plates, moving said master plates toward the master cylinder and mounting said plates thereon, removing the mounted master plates from the master cylinder and moving the removed master plates toward and storing them with the stack of used master plates, wherein the machine includes a wall at a fixed position with respect to the master cylinder and includes means for removably securing the storing means to said wall, said storing means comprising:
  • a new master plate tray for storing a stack of new master plates thereon, said new master plate tray having an opening facing said wall and forming a passageway for new master plates taken from the stack of new master plates by the means for mounting master plates on the master cylinder and moved toward the master cylinder thereby;
  • a used master plate tray for storing a stack of used master plates, said used master plate tray having an opening facing the same wall of the machine as the tray for storing new master plates to form a passageway for master plates removed from the master cylinder and moved toward the stack of used master plates on the used master plate tray by the means for removing master plates from the master cylinder, said used master plate tray including a bottom and a sliding plate thereon provided with a stopper for limiting the distance between said wall of the machine and the end of the used master plate tray which is opposite therefrom and means for adjusting the distance of the stopper from said opening of the used master plate tray, said sliding plate being provided with a guide protuberance having a ridge whose height from the bottom of the used master plate tray increases in the direction toward said stopper; and

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  • Sheets, Magazines, And Separation Thereof (AREA)
  • Projection-Type Copiers In General (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
US00299090A 1969-09-04 1972-10-19 Combination new master supply and used master receiving assembly Expired - Lifetime US3793950A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7016769 1969-09-04

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US3793950A true US3793950A (en) 1974-02-26

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US00299090A Expired - Lifetime US3793950A (en) 1969-09-04 1972-10-19 Combination new master supply and used master receiving assembly

Country Status (4)

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US (1) US3793950A (de)
DE (1) DE2044011C3 (de)
DK (1) DK129776B (de)
GB (1) GB1307633A (de)

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3901144A (en) * 1973-01-26 1975-08-26 Addressograph Multigraph Printing machine
US3943850A (en) * 1972-09-15 1976-03-16 Gestetner Limited Core holder for stencil or ink screen
US4008660A (en) * 1975-04-08 1977-02-22 Pitney-Bowes, Inc. Master loading and unloading apparatus for a lithographic printing machine
US4134338A (en) * 1976-10-27 1979-01-16 Gestetner Limited Stencil ejector
US4191105A (en) * 1977-02-07 1980-03-04 Sisenca S.A. Printing apparatus
US4469319A (en) * 1982-11-22 1984-09-04 Xerox Corporation Large document restacking system
US4669377A (en) * 1984-05-08 1987-06-02 Svecia Silkscreen Maskiner Ab Stencil frame feeding and discharging arrangement
DE8714043U1 (de) * 1987-10-20 1987-12-10 Fuchs, Hans, 6103 Griesheim Klein-Rollenoffsetdruckmaschine
US4727807A (en) * 1985-09-30 1988-03-01 Tokyo Kikai Seisakusho Apparatus for automatically mounting and removing printing plates in rotary printing press
US4789149A (en) * 1987-06-23 1988-12-06 Ncr Corporation Document guide apparatus for pocketing documents
US4905595A (en) * 1987-07-02 1990-03-06 Heidelberger Druckmaschinen Aktiengesellschaft Process and printing press to produce multicolor impressions
US4941654A (en) * 1985-06-29 1990-07-17 Dennison Manufacturing Company Method and apparatus for stacking apertured sheets without jamming
US5111744A (en) * 1989-12-09 1992-05-12 Koenig & Bauer Aktiengesellschaft Method and apparatus for automatically changing a printing plate
US5127328A (en) * 1989-12-09 1992-07-07 Koenig & Bauer Aktiengesellschaft Method and apparatus for automatically feeding a printing plate
US5218907A (en) * 1989-12-15 1993-06-15 Komori Corporation Plate exchange apparatus for printing press
US5259314A (en) * 1989-12-06 1993-11-09 Komori Corporation Plate mounting apparatus for printing press
US5483892A (en) * 1992-09-18 1996-01-16 Koenig & Bauer Aktiengesellschaft Device for supplying printing plates to a plate cylinder and for carrying the same away from the plate cylinder
US5605528A (en) * 1995-01-23 1997-02-25 Output Technology Corporation Paper collector with resilient paper support assembly for facilitating refolding and restacking fanfold paper discharged from a continous form printer or the like
US5791250A (en) * 1996-08-07 1998-08-11 Agfa Division, Bayer Corporation Method and apparatus for an automated plate handler with slip sheet removal mechanism
US6726433B1 (en) 1996-08-07 2004-04-27 Agfa Corporation Apparatus for loading and unloading a supply of plates in an automated plate handler
WO2004085157A1 (de) * 2003-03-28 2004-10-07 Koenig & Bauer Aktiengesellschaft Vorrichtung zum speichern eines einem zylinder einer druckmaschine zuzuführenden aufzugs und ein verfahren zum zuführen von aufzügen zu einem zylinder einer druckmaschine
WO2004085159A1 (de) * 2003-03-28 2004-10-07 Koenig & Bauer Aktiengesellschaft Vorrichtungen zum speichern eines einem zylinder einer druckmaschine zuzuführenden aufzugs
US20050235855A1 (en) * 2004-04-26 2005-10-27 Dainippon Screen Mfg. Co., Ltd. Printing apparatus
US20060043230A1 (en) * 2004-08-24 2006-03-02 General Signal Technology Corporation Paper guide apparatus and method with curl control
US20100018424A1 (en) * 2006-12-22 2010-01-28 Bernd Klaus Faist Devices comprising several spaced-apart storage compartments
US20130307211A1 (en) * 2012-05-16 2013-11-21 Riso Kagaku Corporation Sheet ejection tray
US20140292978A1 (en) * 2013-03-29 2014-10-02 Seiko Epson Corporation Recording apparatus

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6228621Y2 (de) * 1979-09-29 1987-07-22
ATE210937T1 (de) 1997-07-26 2002-01-15 Wellgo Gmbh Werkzeuge Und Spri Spender für reinigungstücher

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2588470A (en) * 1947-02-15 1952-03-11 Dick Co Ab Inking mechanism for rotary lithographic presses
GB852576A (en) * 1956-02-16 1960-10-26 Wilhelm Ritzerfeld Improvements in or relating to rotary duplicating machines
US3160413A (en) * 1961-01-31 1964-12-08 Time Inc Method and apparatus for supporting stacks of signatures
US3234832A (en) * 1962-08-13 1966-02-15 Dick Co Ab Duplicating machine with sheet slitter and dual receiving trays
US3451336A (en) * 1966-01-13 1969-06-24 Addressograph Multigraph Master making and duplicating machine
US3507492A (en) * 1967-10-06 1970-04-21 Bonnierfoeretagen Ab Stacking machine with flow control system
US3632107A (en) * 1968-11-30 1972-01-04 Telefunken Patent Device for conveying thin sheets to a stacker

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2588470A (en) * 1947-02-15 1952-03-11 Dick Co Ab Inking mechanism for rotary lithographic presses
GB852576A (en) * 1956-02-16 1960-10-26 Wilhelm Ritzerfeld Improvements in or relating to rotary duplicating machines
US3160413A (en) * 1961-01-31 1964-12-08 Time Inc Method and apparatus for supporting stacks of signatures
US3234832A (en) * 1962-08-13 1966-02-15 Dick Co Ab Duplicating machine with sheet slitter and dual receiving trays
US3451336A (en) * 1966-01-13 1969-06-24 Addressograph Multigraph Master making and duplicating machine
US3507492A (en) * 1967-10-06 1970-04-21 Bonnierfoeretagen Ab Stacking machine with flow control system
US3632107A (en) * 1968-11-30 1972-01-04 Telefunken Patent Device for conveying thin sheets to a stacker

Cited By (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3943850A (en) * 1972-09-15 1976-03-16 Gestetner Limited Core holder for stencil or ink screen
US3901144A (en) * 1973-01-26 1975-08-26 Addressograph Multigraph Printing machine
US4008660A (en) * 1975-04-08 1977-02-22 Pitney-Bowes, Inc. Master loading and unloading apparatus for a lithographic printing machine
US4134338A (en) * 1976-10-27 1979-01-16 Gestetner Limited Stencil ejector
US4191105A (en) * 1977-02-07 1980-03-04 Sisenca S.A. Printing apparatus
US4469319A (en) * 1982-11-22 1984-09-04 Xerox Corporation Large document restacking system
US4669377A (en) * 1984-05-08 1987-06-02 Svecia Silkscreen Maskiner Ab Stencil frame feeding and discharging arrangement
US4941654A (en) * 1985-06-29 1990-07-17 Dennison Manufacturing Company Method and apparatus for stacking apertured sheets without jamming
US4727807A (en) * 1985-09-30 1988-03-01 Tokyo Kikai Seisakusho Apparatus for automatically mounting and removing printing plates in rotary printing press
US4789149A (en) * 1987-06-23 1988-12-06 Ncr Corporation Document guide apparatus for pocketing documents
US4905595A (en) * 1987-07-02 1990-03-06 Heidelberger Druckmaschinen Aktiengesellschaft Process and printing press to produce multicolor impressions
DE8714043U1 (de) * 1987-10-20 1987-12-10 Fuchs, Hans, 6103 Griesheim Klein-Rollenoffsetdruckmaschine
US5259314A (en) * 1989-12-06 1993-11-09 Komori Corporation Plate mounting apparatus for printing press
US5111744A (en) * 1989-12-09 1992-05-12 Koenig & Bauer Aktiengesellschaft Method and apparatus for automatically changing a printing plate
US5127328A (en) * 1989-12-09 1992-07-07 Koenig & Bauer Aktiengesellschaft Method and apparatus for automatically feeding a printing plate
US5218907A (en) * 1989-12-15 1993-06-15 Komori Corporation Plate exchange apparatus for printing press
US5483892A (en) * 1992-09-18 1996-01-16 Koenig & Bauer Aktiengesellschaft Device for supplying printing plates to a plate cylinder and for carrying the same away from the plate cylinder
US5605528A (en) * 1995-01-23 1997-02-25 Output Technology Corporation Paper collector with resilient paper support assembly for facilitating refolding and restacking fanfold paper discharged from a continous form printer or the like
US20040179922A1 (en) * 1996-07-31 2004-09-16 Agfa Corporation Apparatus for loading and unloading a supply of plates in an automated plate handler
US7055431B2 (en) 1996-07-31 2006-06-06 Agfa Corporation Apparatus for loading and unloading a supply of plates in an automated plate handler
US5791250A (en) * 1996-08-07 1998-08-11 Agfa Division, Bayer Corporation Method and apparatus for an automated plate handler with slip sheet removal mechanism
US6726433B1 (en) 1996-08-07 2004-04-27 Agfa Corporation Apparatus for loading and unloading a supply of plates in an automated plate handler
US20050223928A1 (en) * 2003-02-28 2005-10-13 Koenig 7 Bauer Aktiengesellschaft Device for storing a blanket to be supplied to the cylinder of a printing machine and method for supplying blankets to a cylinder of a printing machine
US7156022B2 (en) 2003-03-28 2007-01-02 Koenig & Bauer Aktiengesellschaft Method for supplying dressings to a cylinder of a printing machine
WO2004085159A1 (de) * 2003-03-28 2004-10-07 Koenig & Bauer Aktiengesellschaft Vorrichtungen zum speichern eines einem zylinder einer druckmaschine zuzuführenden aufzugs
US20050172844A1 (en) * 2003-03-28 2005-08-11 Koenig & Bauer Aktiengesellschaft Devices for storing a blanket to be supplied to a cylinder of a printing machine
WO2004085157A1 (de) * 2003-03-28 2004-10-07 Koenig & Bauer Aktiengesellschaft Vorrichtung zum speichern eines einem zylinder einer druckmaschine zuzuführenden aufzugs und ein verfahren zum zuführen von aufzügen zu einem zylinder einer druckmaschine
CN100336661C (zh) * 2003-03-28 2007-09-12 柯尼格及包尔公开股份有限公司 储存待输送给印刷机滚筒的包衬的装置和输送包衬的方法
US7159516B2 (en) 2003-03-28 2007-01-09 Koenig & Bauer Aktiengesellschaft Devices for storing a dressing to be supplied to a cylinder of a printing machine
US20050235855A1 (en) * 2004-04-26 2005-10-27 Dainippon Screen Mfg. Co., Ltd. Printing apparatus
US7017491B2 (en) * 2004-04-26 2006-03-28 Dainippon Screen Mfg. Co., Ltd. Printing apparatus having plate discharge mechanism with air blowing unit
US7255303B2 (en) * 2004-08-24 2007-08-14 General Signal Technology Corporation Paper guide apparatus and method with curl control
US20060043230A1 (en) * 2004-08-24 2006-03-02 General Signal Technology Corporation Paper guide apparatus and method with curl control
US20100018424A1 (en) * 2006-12-22 2010-01-28 Bernd Klaus Faist Devices comprising several spaced-apart storage compartments
US7934452B2 (en) * 2006-12-22 2011-05-03 Koenig & Bauer Aktiengesellschaft Devices comprising several spaced-apart storage compartments
US20130307211A1 (en) * 2012-05-16 2013-11-21 Riso Kagaku Corporation Sheet ejection tray
US9248990B2 (en) * 2012-05-16 2016-02-02 Riso Kagaku Corporation Sheet ejection tray
US20140292978A1 (en) * 2013-03-29 2014-10-02 Seiko Epson Corporation Recording apparatus
US9296224B2 (en) * 2013-03-29 2016-03-29 Seiko Epson Corporation Recording apparatus

Also Published As

Publication number Publication date
DE2044011C3 (de) 1979-09-27
GB1307633A (en) 1973-02-21
DE2044011B2 (de) 1973-06-20
DK129776B (da) 1974-11-18
DK129776C (de) 1975-04-28
DE2044011A1 (de) 1971-04-22

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